<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>02_变量与常量</title>
</head>
<body>
<script>
    var a=1;
    console.log(a);
    var b=5.32;
    console.log(b);
    var c= false;
    console.log(c);
    var d='还有两天';
    console.log(d);
    var d=666;
    console.log(d);
    var d=true;
    console.log(d);
    var d='我又来了';
    console.log(d);

    let x=1;
    console.log(x);

    const y=5
    console.log(y);
    </script>
</body>
</html>